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Pre-Algebra First Semester Exam Review Flashcards | StudBud
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Pre-Algebra First Semester Exam Review
Pre-Algebra First Semester Exam Review
40 terms
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Pre-Algebra units of integers, decimals, fractions, expressions, and equations
Flashcards
40 cards
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Questions
40
Answers
1
4(x + 5) = 20
5
10
0
-15
2
Simplify: 9/21
5/8
1/5
3/21
3/7
3
3x + 2 = 4x + 8
0
-9
-5
-6
4
Divide and simplify: 9/14 ÷ 3/7
27∕98
3/2
61/42
2/3
5
Write the answer in scientific notation and standard form. Round (5.4 x 10
4
) ÷ (6.62 x 10
2
)
6.62 x 106; 66.2
3.575 x 101; 35.75
8.2 x 101; 82
0.082 x 10-2; 0.082
6
y
5 .
y
2
y7
cannot combine
y3
y10
7
2 2/3 ÷ 1 1/6 =
3 1/9
8
2 2/7
7/16
8
Write in scientific notation: 0.00875
0.875 x 10-2
87.5 x 10-4
8.75 x 10-2
8.75 x 10-3
9
Solve x/8 + 7 = 19
x = 20
x = 145
x = 208
x = 96
10
Solve 2y - 4 = 2
y = 3
y = 5
y = 4
y = -1
11
10 less than the product of z and 6
6z-10z
6z + 10
6z-10
10-6z
12
Write in exponential form. (-3)(-3)(-3)(-3)(-3)
5-3
-35
-3-5
-36
13
Write an algebraic expression: the sum of a and 11
11a
a - 11
a + 11
a/11
14
2.1x + 3.1 = 17.8
7.8
8
10
7
15
Divide and then round to the nearest hundredth: 0.51 ÷ 1.2
2.35
1.88
0.61
0.43
16
Multiply and then simplify -6/7(-5/6)
6/7
36/35
-11/13
5/7
17
8(5t + 4) + 3t
43t + 32
43t + 4
43t - 32
37t + 32
18
What are the two square roots of 81?
40.5, -40.5
20.25, -20.25
9, -9
7, -7
19
3 carrots weigh 1.236 oz, 1.91 oz, and 1.997 oz each. What is their total weight?
4.741 oz
5.143 oz
3.424 oz
5.624 oz
20
5(x+6) + 5 for x = 3
5(3x + 6) +5
50
-10
26
21
Simplify if possible: 1/12 + 8/10
1 3/50
23/30
9/22
53/60
22
Which ordered pair is a solution of y = 5x - 5
(2, 5)
(10, 55)
(7, 31)
(10, 3)
23
6(4.5y - 12) = 9
28
3
0.666
3.33
24
5(x - 2) + 7 = 3x - 8 + 2x
infinite solutions
x = -2
no solution
x = 8
25
-7 + (-15)
-8
-22
22
8
26
Write the decimal 0.694 as a fraction in simplest form.
87/125
347/500
116/167
347/501
27
Write in standard notation: 8.9 x 10
5
0.0000890
890,000
89,000
8,900,000
28
x + 13/15 = 5/6
-1/30
26/25
17/10
-2/45
29
2 = 10 + z/ -3
-4
-5
15
-16
30
-12(-10)
-22
22
-120
120
31
Multiply and then express the result in scientific notation. (2.4 x 10
4
) (9 x 10
3
)
2.16 x 1012
2.16 x 1013
2.16 x 108
2.16 x 107
32
Solve n/3 = 28
n = 25
n = 31
n = 84
n = 9 1/3
33
4 1/5 x 1 1/2 =
4 3/20
6 3/10
4 1/10
5 9/10
34
4a + 4 - 2a + 2
2a + 2
2a + 6
-8a + 8
6a + 2
35
Solve q - 3 = 82
q = 86
q = 85
q = 79
q = 95
36
-12 - 6
-18
18
-6
6
37
(12)
-2
-144
144
-1/144
1/144
38
5(x - 2) + 7 = 2x - 3 + 3x
no solution
x = -2
infinite solutions
x = 8
39
5/4(a - 8) = 2/3
6 14/15
7 1/15
8 8/15
8 2/3
40
Solve. If possible, simplify: -6/11 - 8/11
-1 3/11
-7/11
-2/11
2/11
